Home / 78,633,734.79-117,967,628.36-30,111,590.31

Finding the Fourth Proportional to 78,633,734.79, 117,967,628.36 and 30,111,590.31

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Solution

The fourth proportional to 78,633,734.79, 117,967,628.36 and 30,111,590.31 is: 45,173,905.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,633,734.79 : 117,967,628.36 = 30,111,590.31 : x
  2. Step 2: Convert to fraction form
    78,633,734.79/117,967,628.36 = 30,111,590.31/x
  3. Step 3: Cross multiply
    78,633,734.79x = 117,967,628.36 × 30,111,590.31
  4. Step 4: Simplify right side
    78,633,734.79x = 3,552,192,895,018,657
  5. Step 5: Solve for x
    x = 3,552,192,895,018,657/78,633,734.79
  6. Step 6: Final answer
    x = 45,173,905.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.